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Message-ID: <20071011195544.GA4247@loki.buserror.net> Date: Thu, 11 Oct 2007 14:55:44 -0500 From: Scott Wood <scottwood@...escale.com> To: Olof Johansson <olof@...om.net> Cc: linux-kernel@...r.kernel.org, grundler@...isc-linux.org, kyle@...isc-linux.org, linuxppc-dev@...abs.org, lethal@...ux-sh.org, akpm@...ux-foundation.org Subject: Re: [PATCH 2/2] powerpc: Switch to generic WARN_ON()/BUG_ON() On Thu, Oct 11, 2007 at 12:14:13PM -0500, Olof Johansson wrote: > Not using the ppc-specific WARN_ON/BUG_ON constructs actually saves about > 4K text on a ppc64_defconfig. The main reason seems to be that prepping > the arguments to the conditional trap instructions is more work than > just doing a compare and branch. It'd be nice if we could get GCC to generate bug table entries for __builtin_trap(); that way we could use GCC's ability to put arbitrary conditions in the trap instruction. -Scott - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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